Equipped creature gets +1/+1 and has haste.
At the beginning of each combat, untap equipped creature.
Equipped creature has first strike as long as it's blocking or blocked by a Goblin or Orc.
Equip

Whenever this creature is dealt damage, put a +1/+1 counter on it.

Destroy all creatures. For each nontoken creature destroyed this way, you create a tapped Treasure token.

You may have this creature enter as a copy of any nonland permanent on the battlefield.

This land enters tapped unless you control two or more other lands.
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Draw a card. If a graveyard has twenty or more cards in it, draw three cards instead.

Search your library for up to two enchantment cards, reveal them, put them into your hand, then shuffle.

Counter target spell.

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You may pay and tap four untapped creatures you control with flying rather than pay this spell's mana cost.
Flying, lifelink
Other creatures you control with flying have indestructible. (Damage and effects that say "destroy" don't destroy them.)

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, : Target player mills three cards.

Landfall — Whenever a land you control enters, you may have target player lose 3 life. If you do, put three +1/+1 counters on Ob Nixilis.

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When this artifact enters, you may sacrifice a nontoken creature. If you do, draw X cards, then mill X cards, where X is that creature's power.
Craft with one or more creatures
: Return this card from your graveyard to your hand.

This creature gets -X/-X, where X is your life total.

Trample
When this creature enters, you take the initiative.

, Pay 4 life, Sacrifice Apple of Eden: Look at target opponent's hand and exile those cards face down. You may play those cards this turn, and mana of any type can be spent to cast them. Until end of turn, whenever you play a land or cast a spell this way, its owner draws a card. At the beginning of the next end step, return the exiled cards to their owner's hand. Activate only as a sorcery.

Flying
Shadow (This creature can block or be blocked by only creatures with shadow.)
: Creatures with shadow get +1/+0 until end of turn and creatures without shadow get -1/-0 until end of turn.

If a creature attacking causes a triggered ability of a permanent you control to trigger, that ability triggers an additional time.

Flash
Polymorphine — You may have this creature enter tapped as a copy of any creature on the battlefield, except it has "When this creature enters, destroy up to one other target creature with the same name as this creature."